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    • 91. 发明申请
    • ELECTRODYNAMIC DRIVE
    • US20190326805A1
    • 2019-10-24
    • US16467438
    • 2017-12-06
    • HILTI AKTIENGESELLSCHAFT
    • Arno MECKLENBURGTilo DITTRICH
    • H02K41/035H02K33/00H02K41/025H01H3/28H01H33/38H01H71/24B25C1/06B27F7/11H01F7/08
    • The invention relates to a highly dynamic electromagnetic drive in the manner of a Thomson coil with soft-magnetic frame, comprising a first excitation coil (30) whose winding height is greater than its length, which hence is flat; a soft-magnetic frame in which the first excitation coil is arranged and against which it abuts, and which in the manner of a pot magnet constitutes an open magnetic circuit which includes an outer region, a bottom and an inner region, and which is open on its end face, wherein the first excitation coil at least partly encloses the inner part of the frame; a short circuit armature preferably formed hollow cylindrical at least on its side facing the first excitation coil, which is movably mounted along an axis and which in its stroke starting position dips into the end-face opening of the frame and thereby at least partly encloses the inner part of the frame, wherein the frame entirely or predominantly is formed of a soft-magnetic composite material or one or more sheet stacks, which has a saturation flux density of at least 1.5 T and an effective specific electrical conductivity of not more than 106 S/m, and the first excitation coil and/or the frame include at least one means for strain relief, in particular in the form of an enclosure in order to at least partly absorb at least the radial forces occurring on the first excitation coil during an actuating operation vertically to the direction of movement, and wherein the Lorentz force acting on the short circuit armature is used to perform work.
    • 93. 发明授权
    • Sheet-stapling device
    • 平板装置
    • US5141143A
    • 1992-08-25
    • US670856
    • 1991-03-18
    • Arno EbnerHelmut Ettischer
    • Arno EbnerHelmut Ettischer
    • B25C5/02B27F7/11B27F7/19B42B4/00
    • B27F7/19
    • A cam unit (3) with cams (3a, 3b and 3c) is mounted by journals (3d) directly on plastic housing portions (1 and 2). A bracket (5) which is actuated by cam (3a) is slidably arranged on one housing portion (2) together with a back-up (26) and a clincher unit (9, 10). A slider (8) shiftably mounted on bracket (5) actuates the clincher unit (9, 10) via a cam (3c). Another cam (3b) engages a sliding block (6) which operates a stapler (15 to 17). The entire stapling device is slidable along a driven profiled shaft (4) positively coupled with cam unit (3). The cams (3a, 3b, 3c) are designed such that, in relation to the journals (3d), two diametrically opposed force-transmitting cam sections of different cams (3a and 3b and 3c, respectively) each become effective at a time. Thus, a force of action in one direction, which is caused by one cam (3b and 3c, respectively), is counteracted by a force of reaction of equal strength in the other direction, which is caused by the other cam (3a and 3b, respectively). As a result, the bearing load on the journals (3d) is kept low throughout the stapling operation.
    • 具有凸轮(3a,3b和3c)的凸轮单元(3)通过轴颈(3d)直接安装在塑料壳体部分(1和2)上。 由凸轮(3a)致动的托架(5)与支撑件(26)和敲弯单元(9,10)一起可滑动地布置在一个壳体部分(2)上。 可移动地安装在支架(5)上的滑块(8)经由凸轮(3c)致动敲弯单元(9,10)。 另一个凸轮(3b)接合操作订书机(15至17)的滑块(6)。 整个装订装置可沿着与凸轮单元(3)正向联接的从动成型轴(4)滑动。 凸轮(3a,3b,3c)被设计成使得相对于轴颈(3d),不同凸轮(3a和3b和3c分别)的两个直径相对的力传递凸轮部分每次都有效。 因此,由一个凸轮(3b和3c)分别引起的一个方向的作用力通过另一个凸轮(3a和3b)引起的另一个方向上的等强度的反作用力抵消 , 分别)。 因此,在整个装订操作中,轴颈(3d)上的轴承负载保持较低。
    • 94. 发明公开
    • Machine for driving fastening members into workpieces
    • 在Werkstücke的Maschine zum Eintreiben von Befestigungsmitteln
    • EP2383085A1
    • 2011-11-02
    • EP11163634.6
    • 2011-04-26
    • Swans Mekaniska Verkstad I Gagnef AB
    • Davidsson, Leif
    • B27F7/11B23P19/06
    • B27F7/11
    • A machine for driving fastening members into workpieces, comprising:
      - a reversible drive motor (3);
      - an axially displaceable tool (6); and
      - a motion conversion mechanism comprising a screw rod (9) and a nut (10) which co-operates with the screw rod, for converting a rotary motion of the output shaft of the drive motor into an axial translational motion of the tool.
      The nut is axially fixed to a holder unit (11) and is prevented from being displaced in the axial direction in connection with a mutual rotation between the screw rod and the nut, the screw rod being displaced in relation to the nut and the holder unit in the axial direction when the screw rod and the nut are subjected to a mutual rotation under the effect of the drive motor. The tool is arranged to be displaced together with the screw rod in the axial direction downwards into engagement with a fastening member when the screw rod and the nut are subjected to a mutual rotation in a first direction and in the axial direction upwards out of engagement with the fastening member when the screw rod and the nut are subjected to a mutual rotation in a second direction.
    • 一种用于将紧固件驱动到工件中的机器,包括:可逆驱动马达(3); - 可轴向移动的工具(6); 以及 - 运动转换机构,包括与所述螺杆配合的螺杆(9)和螺母(10),用于将所述驱动马达的输出轴的旋转运动转换成所述工具的轴向平移运动。 螺母轴向地固定到保持器单元(11),并且防止与螺杆和螺母之间的相互旋转相关地在轴向方向上移位,螺杆相对于螺母和保持器单元移位 当螺杆和螺母在驱动马达的作用下经受相互旋转时的轴向。 该工具被布置成当螺杆和螺母在第一方向上相互旋转并且在轴向方向上向上脱离与 当螺杆和螺母在第二方向上相互旋转时,紧固构件。
    • 96. 发明专利
    • Elektrotacker
    • DE102020113084A1
    • 2021-11-18
    • DE102020113084
    • 2020-05-14
    • ISABERG RAPID AB
    • HOLGERSSON MATS
    • B27F7/11B25C1/06B25C5/15
    • Die Erfindung betrifft einen Elektrotacker (10) zum Einschießen von Befestigungsmitteln (12) wie Heftklammern, Nägeln und dergleichen in Werkstücke mit einem an seinem Vorderende einen Spalt (22) für den Durchtritt einzelner Befestigungsmittel (12) beim Einschießen in ein Werkstück aufweisenden Magazin (16), in dem die Befestigungsmittel (12) in einer Reihe (14) aneinander anliegend aufgenommen sind, und mit einem Treiber (26), der mittels eines Elektromotors gegen die Rückstellkraft einer Spannfeder (34) aus einer Ruheposition in eine Auslöseposition beweglich ist, und der mittels der Rückstellkraft der Spannfeder (34) unter Beaufschlagung des ein Vorderende der Reihe (14) bildenden vordersten Befestigungsmittels (12) zum Durchtreten durch den Spalt (22) von der Auslöseposition in die Ruheposition beweglich ist. Erfindungsgemäß ist vorgesehen, dass der Treiber (26) in einer Spannposition arretierbar ist, die er bei seiner Bewegung ausgehend von der Ruheposition vor dem Erreichen der Auslöseposition erreicht.